Function xila_file_system_open_at 

pub unsafe extern "C" fn xila_file_system_open_at(
    directory: XilaFileIdentifier,
    relative_path: *const c_char,
    is_directory: bool,
    mode: XilaFileSystemMode,
    open: XilaFileSystemOpen,
    status: XilaFileSystemStatus,
    out: *mut XilaFileIdentifier,
) -> u32

This function is used to open a file or directory at a given directory.

Safety

This function is unsafe because it dereferences raw pointers.